machine_discovery_repo.py 文件源码

def _delete_all_attached(session: Session, machine: Machine):
        """
        Delete all resources attached to a machine
        As we don't need performance we can avoid heuristics by dropping and re-creating theses needed resources
        The discovery data is the reference of the reality
        :param session:
        :param machine:
        :return:
        """
        session.query(MachineDisk) \
            .filter(MachineDisk.machine_id == machine.id) \
            .delete()

        all_mi = session.query(MachineInterface) \
            .filter(MachineInterface.machine_id == machine.id)
        for i in all_mi:
            session.query(ChassisPort) \
                .filter(ChassisPort.machine_interface == i.id) \
                .delete()
            session.delete(i)

        session.flush()